I successfully log out and in out and in to Android zoho mail with the adminidadmini email address and password successfully no trouble (and to web), but when I try to log into Android Zoho mail on a second device with the same credentials, it says wrong password.

Is there a common reason this may happen it is it most likely I am doing something wrong.  Are there any common things that can be done wrong that would result in this but are easily missed?

Thanks.